Surveys

Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.

North Atlantic · NAVAREA IV 1430/25

issued
2025-12-31 16:45Z
status
in force
self-cancels
2027-12-31 00:01Z
position
8.121, -56.971
source
nga_inforce · first seen 2026-08-17 13:41Z

Original warning text

NORTH ATLANTIC.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 31 DEC 26
   BY OSV ALDEMIR SOUZA TIDE IN AREA BOUND BY
   08-15.96N 057-02.23W, 08-15.96N 056-54.25W,
   07-58.60N 056-54.25W, 07-58.60N 057-02.23W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 310001Z DEC 27.

Conditions at the position · now

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Open-Meteo Marine / Open-Meteo · GEBCO 2020 · model data at the centroid, not an observation

This area · survey operations

285 within 180 nm since 2014 · 13 in the last 12 months · 14 in force now

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25
26

Season · when survey operations happen here

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month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

73 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.